1TZN

Crystal Structure of the Anthrax Toxin Protective Antigen Heptameric Prepore bound to the VWA domain of CMG2, an anthrax toxin receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.30 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.322 
  • R-Value Observed: 0.325 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of heptameric protective antigen bound to an anthrax toxin receptor: A role for receptor in pH-dependent pore formation

Lacy, D.B.Wigelsworth, D.J.Melnyk, R.A.Harrison, S.C.Collier, R.J.

(2004) Proc Natl Acad Sci U S A 101: 13147-13151

  • DOI: https://doi.org/10.1073/pnas.0405405101
  • Primary Citation of Related Structures:  
    1TZN, 1TZO

  • PubMed Abstract: 

    After binding to cellular receptors and proteolytic activation, the protective antigen component of anthrax toxin forms a heptameric prepore. The prepore later undergoes pH-dependent conversion to a pore, mediating translocation of the edema and lethal factors to the cytosol. We describe structures of the prepore (3.6 A) and a prepore:receptor complex (4.3 A) that reveal the location of pore-forming loops and an unexpected interaction of the receptor with the pore-forming domain. Lower pH is required for prepore-to-pore conversion in the presence of the receptor, indicating that this interaction regulates pH-dependent pore formation. We present an example of a receptor negatively regulating pH-dependent membrane insertion.


  • Organizational Affiliation

    Department of Microbiology and Molecular Genetics, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protective antigen562Bacillus anthracis str. A2012Mutation(s): 0 
Gene Names: pagA
UniProt
Find proteins for P13423 (Bacillus anthracis)
Explore P13423 
Go to UniProtKB:  P13423
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP13423
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Anthrax toxin receptor 2181Homo sapiensMutation(s): 0 
Gene Names: ANTXR2
UniProt & NIH Common Fund Data Resources
Find proteins for P58335 (Homo sapiens)
Explore P58335 
Go to UniProtKB:  P58335
PHAROS:  P58335
GTEx:  ENSG00000163297 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP58335
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download Ideal Coordinates CCD File 
AB [auth I]
BB [auth I]
CA [auth A]
DA [auth A]
DB [auth J]
AB [auth I],
BB [auth I],
CA [auth A],
DA [auth A],
DB [auth J],
EB [auth J],
FA [auth B],
GA [auth B],
GB [auth K],
HB [auth K],
IA [auth C],
JA [auth C],
JB [auth L],
KB [auth L],
LA [auth D],
MA [auth D],
MB [auth M],
NB [auth M],
OA [auth E],
PA [auth E],
PB [auth O],
QB [auth O],
RA [auth F],
SA [auth F],
UA [auth G],
VA [auth G],
XA [auth H],
YA [auth H]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
CB [auth I]
EA [auth A]
FB [auth J]
HA [auth B]
IB [auth K]
CB [auth I],
EA [auth A],
FB [auth J],
HA [auth B],
IB [auth K],
KA [auth C],
LB [auth L],
NA [auth D],
OB [auth M],
QA [auth E],
RB [auth O],
TA [auth F],
WA [auth G],
ZA [auth H]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.30 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.322 
  • R-Value Observed: 0.325 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 158.8α = 69.58
b = 158.846β = 69.07
c = 214.084γ = 65.58
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
MOLREPphasing
CNSrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-08-17
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2024-04-03
    Changes: Data collection, Database references, Derived calculations, Refinement description